CN101083123B - Method for accessing data in disk and reproducer - Google Patents
Method for accessing data in disk and reproducer Download PDFInfo
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- CN101083123B CN101083123B CN200710126966XA CN200710126966A CN101083123B CN 101083123 B CN101083123 B CN 101083123B CN 200710126966X A CN200710126966X A CN 200710126966XA CN 200710126966 A CN200710126966 A CN 200710126966A CN 101083123 B CN101083123 B CN 101083123B
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- 238000000034 method Methods 0.000 title claims abstract description 42
- 230000007547 defect Effects 0.000 claims abstract description 323
- 230000002950 deficient Effects 0.000 claims description 66
- 238000007726 management method Methods 0.000 description 155
- 238000012795 verification Methods 0.000 description 4
- 238000001514 detection method Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000007689 inspection Methods 0.000 description 3
- 230000001174 ascending effect Effects 0.000 description 2
- 238000004590 computer program Methods 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 241001269238 Data Species 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000001172 regenerating effect Effects 0.000 description 1
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Classifications
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- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
- G11B20/10—Digital recording or reproducing
- G11B20/18—Error detection or correction; Testing, e.g. of drop-outs
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- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
- G11B20/10—Digital recording or reproducing
- G11B20/18—Error detection or correction; Testing, e.g. of drop-outs
- G11B20/1883—Methods for assignment of alternate areas for defective areas
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- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
- G11B20/10—Digital recording or reproducing
- G11B20/18—Error detection or correction; Testing, e.g. of drop-outs
- G11B2020/1873—Temporary defect structures for write-once discs, e.g. TDDS, TDMA or TDFL
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- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B2220/00—Record carriers by type
- G11B2220/20—Disc-shaped record carriers
Abstract
A method of and apparatus for managing disc defects in a disc using a temporary defect management area in the disc, and the disc, where the method includes recording in a data area user data; and recording in a temporary defect management area, which is present in at least one of a lead-in area and a lead-out area, which temporary defect information and temporary defect management information regarding the user data recorded in the data area are recorded. Accordingly, the method and apparatus are applicable to recordable discs and capable of effectively using the defect management area.
Description
The application be that September 23, application number in 2003 are 03824066.1 the applying date, denomination of invention divides an application for the application for a patent for invention of " method and apparatus and the dish of managing defect thereon that are used for the disc defect of management dish ".
Technical field
The present invention relates to defect management, more particularly, relate to and a kind ofly be used to use temporary defect management area territory (TDMA) to come the method and apparatus of managing disc defect, and a kind of dish that uses this method and apparatus to carry out defect management therein.
Background technology
Defect management is the processing that rewrites the data in the user data area that is stored in the dish that produces defective therein.Data are re-written to the new portion of the data area of dish, thus the loss of data that compensation is caused by defective in addition.Usually, use linear replacement method or slippage replacement method to carry out defect management.In linearity replacement method, use the spare data area that does not have defective to replace the user data area that has defective therein.In slippage replacement method, the user data area with defective is by slippage, and the next user data area that does not have defective of use.
Linear replace and slippage replacement method the two only may be used on thereon can the duplicate record data and can use random access regime to come the dish such as the DVD-RAM/RW of executive logging.In other words, linear replace and slippage replacement method is difficult to be applied to and only allows the Write-once disc that once writes down thereon.
Usually, by data being recorded on the dish and confirming then whether data correctly have been recorded in the existence that detects the defective in the dish on the dish.Yet, in case data are recorded on the Write-once disc impossible overwrite new data and management defective wherein.
After the development of CD-R and DVD-R, introduced the high density Write-once disc of recording capacity with tens GB.Because the random access that such dish is inexpensive and allow the realization fast recording to operate is so such dish can use as back-up disk.Yet owing to cannot carry out defect management for Write-once disc, when detecting defect area when (that is, having the zone of defective) during backup operation, backup operation is ended.Usually, because when the time less than using system continually, as carry out backup operation at the night of system manager's inoperation system, so in the time of may working as backup operation more and be stopped because detecting the defect area of Write-once disc, the backup operation of ending is ended keeping whole night, thereby does not fully carry out this backup operation.
Summary of the invention
The invention provides a kind of defect management method and equipment and a kind of dish that uses this defect management method to come managing defect that can be applied to dish.
The present invention also provides a kind of defect management method and equipment, still can managing disc defect even during recording operation, detect this method and apparatus of defective, realize no interruption logging operation, and a kind of dish with this method.
Will be in ensuing description part set forth the present invention other aspect and/or advantage, some will be clearly by describing, and perhaps can learn through enforcement of the present invention.
According to an aspect of the present invention, dish comprises: data area, user data therein; With the temporary defect management area territory, be present in and introduce the zone and draw in the zone at least one, and write down temporary defect information and temporary defect management information therein about being recorded in the user data in the data area.
Best, but unessential, user data therein is recorded in each recording operation record temporary defect information and temporary defect management information in the data area.
In addition, best, but unessential, temporary defect information comprises the information of position of defect area that the data area of corresponding user data is write down in indication therein, or comprises the information of indication as the position in the replacement zone that substitutes of defect area.
According to a further aspect in the invention, a kind of method of managing the disc defect in the dish is provided, and this method comprises: will be recorded in the introducing zone that is present in dish as temporary defect information and draw in the temporary defect management area territory in the zone at least one about the defect information of the data in the data area that is recorded in dish according to recording operation; With will be used for managing temporary defect management of information information and be recorded in the temporary defect management area territory as temporary defect management information.
Best, but unessential, this method also comprises: to each recording operation duplicate record defect information and records management information; Introduce the zone and draw in the defect management at least one of zone with the temporary defect management information of final entry and temporary defect information being recorded in be present in.
According to an aspect of the present invention, during the finishing at last of dish, carry out the temporary defect recording of information of final entry.
Best, but unessential, record defect information also comprises: record indication comprises the information of position of defect area of data area of corresponding user data as temporary defect information; Record indication as the information of the position in the replacement zone that substitutes of defect area as temporary defect information; Or initial from the temporary defect information area, sequentially temporary defect information is recorded in the temporary defect information area that is included in the temporary defect management area territory.
Best, but unessential, records management information comprises: from the end of temporary defect management information areas, sequentially defect information is recorded in the temporary defect management information areas that is included in the temporary defect management area territory.
According to a further aspect in the invention, provide a kind of record and/or reproducer that uses with dish, this equipment comprises: record/read the unit is recorded in data on the dish or from coiling reading of data; And controller, controlling recording/read unit is recorded in the temporary defect management area territory will be recorded in the introducing zone that is present in dish as temporary defect information about the defect information of the data in the data area that is recorded in dish according to recording operation and draw in the temporary defect management area territory in the zone at least one and will be used for managing temporary defect management of information information as temporary defect management information.
Best, but it is not essential, controller controlling recording/read the unit so that each recording operation is recorded in temporary defect information and temporary defect management information in the temporary defect management area territory, and during the finishing at last of dish, the temporary defect management information of the temporary defect information of final entry and final entry is recorded in the introducing zone that is present in dish and draws in the defect management in the zone at least one.
According to a further aspect in the invention, provide a kind of recording unit that uses with dish, this equipment comprises: record/read the unit is recorded in data on the dish or from coiling reading of data; And controller, controlling recording/read unit with: will be recorded in the introducing zone that is present in dish as the first temporary defect information about the defect information of first data in the data area that is recorded in dish according to first recording operation and draw in the temporary defect management area territory at least one of zone, first defect management information that will be used for the first temporary defect information of managing is recorded in the temporary defect management area territory as the first temporary defect management information, to be recorded in the temporary defect management area territory as the second temporary defect information about second defect information, and the defect management information that will be used for the second temporary defect information of managing is recorded in the temporary defect management area territory as the second temporary defect management information according to second data in the second recording operation record data zone.
Description of drawings
Fig. 1 is according to the record of the embodiment of the invention and/or the block scheme of reproducer.
Fig. 2 A and 2B illustrate the structure according to the dish of the embodiment of the invention.
Fig. 3 illustrates the data structure according to the dish of Fig. 2 A of the embodiment of the invention and 2B.
Fig. 4 A illustrates data structure according to the defect management of the embodiment of the invention to 4D.
Fig. 5 illustrates data are recorded in user data area and the spare area according to the embodiment of the invention.
Fig. 6 A, 6B and Fig. 7 illustrate according to the temporary defect information TDFL# 0 of the embodiment of the invention and the data structure of TDFL# 1.
Fig. 8 is the process flow diagram that illustrates according to the defect management method of the embodiment of the invention.
Fig. 9 illustrates the process flow diagram of defect management method according to another embodiment of the present invention.
Embodiment
To go through present embodiment of the present invention now, its example is shown in the drawings, and wherein, same reference numerals is specified same parts all the time.Below by describing embodiment with reference to the accompanying drawings to explain the present invention.
Fig. 1 is according to the record of the embodiment of the invention and/or the block scheme of reproducer.With reference to figure 1, this record and/or reproducer comprise: record/read unit 1, controller 2 and storer 3.Record/read unit 1 is recorded in data as on the dish 100 according to the information storage medium of first embodiment of the invention, and from coiling the accuracy of 100 readback datas with the data of calibration tails.The defect management that controller 2 is carried out according to the embodiment of the invention.In the illustrated embodiment, controller 2 uses verify-after-write method, in the method, with predetermined data unit data are recorded on the dish 100, and the accuracy of the data of calibration tails is with the defective in the data of detection record.In other words, controller 2 is that unit records the user data on the dish 100 with the recording operation, and the user data of calibration tails is to detect the zone (that is defect area) of the dish 100 that wherein has defective.After with the predetermined unit record data, controller 2 is created the information of position of defect area of display discs 100 as temporary defect information, and with the temporary defect information stores created in storer 3.If the amount of canned data reaches predeterminated level, then controller 2 is recorded in canned data on the dish 100 as defect information.
In this, recording operation is the unit according to user's the determined work of intention, or with the writing task that is performed.According to this embodiment, the recording operation indication is coiled 100 therein and is loaded into record and/or reproducer, and data are recorded on the dish 100, and will coil 100 processes from record and/or reproducer taking-up.In this recording operation, data be recorded with verification at least once.Usually, data be recorded with verification several times.The defect information of using verify-after-write method to obtain is temporarily stored in the storer 3.
When the ejector button (not shown) of pressing record and/or reproducer the later user of record data coiled 100 to shift out, controller 2 expectation recording operations were terminated.Next, controller 2 reads the information that is stored in the storer 3, and the data that read are provided to record/read unit 1, and controlling recording/read unit 1 to be recorded on the dish 100 with the data that will read.
If finish data are recorded on the dish 100 (that is, no longer include data and will be recorded on the dish 100 and coil 100 and will be finished at last), then controller 2 is recorded in temporary defect information and temporary defect management information in the defect management of dish 100.
At reproduction period, record and/or reproducer utilize defect information in defect management and/or the temporary defect management area territory and the defect management information user data with Visitor Logs.Although describe according to record shown in Fig. 1 and/or reproducer, should be appreciated that this equipment can be independent record or reproducer or record and reproducer.
Fig. 2 A and 2B illustrate the structure according to the dish among Fig. 1 of the embodiment of the invention 100.Fig. 2 A is shown specifically the single record layer disc of the dish 100 with recording layer L0 and represents.Dish 100 comprises to be introduced zone, data area and draws the zone.Introduce the inside part that the zone is positioned at dish 100, draw the Outboard Sections that the zone is positioned at dish 100.The data area is present in the introducing zone and draws between the zone, and is divided into user data area and spare area.
User data area is the zone of the data area of user data.Spare area is the zone as the data area except that user data area in the replacement zone of the part of the user data area that is used to have defective.Spare area is used for compensating losing of posting field that the defective by user data area causes.Suppose may produce defective in 100 at dish, preferably but unessential, spare area take dish 100 whole data capacity 5%, coil on 100 thereby lot of data can be recorded in.
Fig. 2 B illustrates the double record layer disc of the dish 100 with two recording layer L0 and L1 and represents.Outboard Sections from the inside part of the first recording layer L0 to the first recording layer L0 sequentially forms introduces zone, data area and perimeter.In addition, the inside part from the Outboard Sections of the second recording layer L1 to second recording layer sequentially forms perimeter, data area and draws the zone.Different with the single record layer disc 100 of Fig. 2 A, draw the zone and be present in the inside part of dish 100 of Fig. 2 B.Promptly, the dish 100 of Fig. 2 B has since the introducing of first recording layer L0 zone and continuous perimeter to the first recording layer L0, and from the perimeter of the second recording layer L1 continuously to the reverse orbital path (OTP) of drawing regional record data of the second recording layer L1.Spare area is assigned in each of recording layer L0 and L1.
In the embodiment of Fig. 2 A and 2B, spare area be present in user data area and draw between the zone and user data area and perimeter between.If desired, the part of user data area can be used as another spare area.Specifically, may reside in more than a spare area and introduce the zone and draw between the zone.
Fig. 3 illustrates the details according to the structure of the dish 100 of the embodiment of the invention.With reference to figure 3, the temporary defect management area territory is present in dish 100 introducing zone, draws at least one in zone and the perimeter.In addition, the temporary defect management area territory is present in and introduces the zone and draw in the zone at least one.
Usually, the information about the defective in the management dish 100 is recorded in the defect management.This information comprises: be used for the structure of the dish 100 of defect management, the position of defect information, the position of whether carrying out defect management and spare area and size.Under the situation of Write-once disc, according to an aspect of the present invention, when the data of previous record changed, new data was recorded in after the data of precedence record usually.
Usually, when dish was loaded into recording/reproducing apparatus as shown in Figure 1, this equipment coiled 100 from coiling 100 introducing zone and drawing regional reading of data to determine how to manage, and data are recorded on the dish 100 or from coiling 100 reading of data.Yet, increase if be recorded in the data volume of introducing in the zone, after the dish of packing into, will take a long time and write down or reproduce data.Therefore, the present invention advises temporary defect management information and temporary defect information.Temporary defect management information and temporary defect information are recorded in to be formed at and introduce the zone and/or draw in the temporary defect management area territory in the zone.
According to embodiments of the invention, use linear replacement method to carry out defect management.Therefore, temporary defect information comprises the information of position of defect area of display disc 100 and the information of a part that indication can be used as the dish 100 in the replacement zone that is used for defect area.Temporary defect management information is used to managing temporary defect information, and comprises the information of the point of the dish 100 of indicating record temporary defect information.
According to the embodiment of the invention, record temporary defect information and temporary defect management information when each recording operation finishes.The temporary defect management area territory comprises temporary defect information # 0 and temporary defect information #1.Temporary defect information # 0 comprises about the information of the defective that produces in the data that write down during recording operation # 0 with about replacing the information in zone.Temporary defect information # 1 comprises about the information of the defective in the data that write down during recording operation # 1 with about the information as the replacement zone of temporary defect information #1.In addition, the temporary defect management area territory comprises temporary defect management information # 0, #1.Temporary defect management information # 0, #1 comprise the corresponding information that is used for managing temporary defect management information # 0, #1.
If no longer including data can maybe will be recorded on the dish 100, if or the user does not want to write down more multidata on 100 (promptly at dish, dish 100 need be finished at last), the temporary defect information that then is recorded in the temporary defect information area is recorded in the defect management with the temporary defect management information that is recorded in the temporary defect management information areas.
To explain now temporary defect management information and temporary defect information will be recorded in reason in the defect management (DMA) once more.When not more multidata will be recorded on the dish 100 (promptly, dish 100 need be finished at last) time, the temporary defect management information and the temporary defect information that are updated several times are moved to the defect management of introducing the zone, thereby realize being recorded in reading fast of information in the dish 100.In addition, can be by defect management information being recorded in the reliability of the information that increases in a plurality of zones.
In an embodiment of the present invention, being recorded in temporary defect information area # 0 is recorded among the temporary defect information area #i cumulatively to the defect information among the #i-1.Therefore, during the finishing at last of dish, read defect information from the temporary defect information #i of final entry, and the information that reads is recorded among the DMA just enough once more.
For the compact disc of the recording capacity with tens GB, usually expectation will bunch be assigned to the zone of writing down temporary defect management information #i therein, and be assigned to the zone of writing down temporary defect information #i therein with four to eight bunches.Although this is because the amount of temporary defect information #i is only several KB, when the common minimal physical unit that is easy to act as record most is bunch, bunch being that the unit record new data is with lastest imformation.The total amount of the defective that allows in dish 100 preferably approximately is 5% of a disk recording capacity.For example, the information about defective considered approximately be 8 byte longs and bunch size be that 64KB is long, need four to eight bunches and write down temporary defect information #i.
According to an aspect of the present invention, can carry out verify-after-write method to temporary defect information #i and temporary defect management information #i.When detecting defective, the information that can use linear replacement method will be recorded in the defect area of the dish 100 that comprises defective is recorded in the spare area, perhaps can use slippage replacement method with its be recorded in the defect area adjacent areas in.
Fig. 4 A illustrates data structure according to the temporary defect management area territory (TDMA) of the embodiment of the invention to 4D.With reference to figure 4A, the temporary defect management area territory logically is divided into two parts: temporary defect information area and temporary defect management information areas.Initial to its end from the temporary defect information area, temporary defect information TDFL# 0, TDFL# 1, TDFL# 2 are sequentially recorded in the temporary defect information area.Initial to its end from the temporary defect management information areas, temporary defect management information TDDS# 0, TDDS# 1, TDDS# 2 are sequentially recorded.Temporary defect management information TDDS# 0, TDDS# 1 and TDDS# 2 are respectively corresponding to temporary defect information TDFL# 0, TDFL# 1, TDFL# 2.
With reference to figure 4B, shown in Fig. 4 A, the temporary defect management area territory logically is divided into two parts: temporary defect information area and temporary defect management information areas.Yet the order that records the information in temporary defect information area and the temporary defect management information areas is different with order in temporary defect information area that records the information in Fig. 4 A and the temporary defect management information areas.Say that at length initial to it from the end of temporary defect information area, temporary defect information TDFL# 0, TDFL# 1, TDFL# 2 are sequentially recorded.Initial to it from the end of temporary defect management information areas, temporary defect management information TDDS# 0, TDDS# 1, TDDS# 2 are sequentially recorded.Temporary defect management information TDDS# 0, TDDS# 1 and TDDS# 2 are respectively corresponding to temporary defect information TDFL# 0, TDFL# 1 and TDFL# 2.
With reference to figure 4C, corresponding temporary defect information and temporary defect management information are a pair of information in the corresponding temporary management information in being recorded in temporary defect management area territory (DMA).That is, begin to its end point from the initial of temporary defect management area territory, temporary management information TDMA# 0, TDMA# 1, TDMA# 2 are sequentially recorded.Temporary management information TDMA# 0 comprises corresponding a pair of temporary defect management information TDDS# 0 and temporary defect information TDFL#0.Temporary management information TDMA# 1 comprises corresponding a pair of temporary defect management information TDDS# 1 and temporary defect information TDFL#1.Temporary management information TDMA# 2 comprises corresponding a pair of temporary defect management information TDDS# 2 and temporary defect information TDFL# 2.
With reference to figure 4D, to compare with the temporary defect management area territory of Fig. 4 C, corresponding temporary defect information and temporary defect management information are a pair of information in the corresponding temporary management information in being recorded in the temporary defect management area territory, but the order difference of recorded information.That is, initial from the end in temporary defect management area territory to it, sequentially write down temporary management information TDMA# 0, TDMA# 1, TDMA#2.Temporary management information TDMA# 0, TDMA# 1, TDMA# 2 comprise a pair of corresponding temporary defect management information TDDS# 0 and temporary defect information TDFL# 0, a pair of corresponding temporary defect management information TDDS# 1 and temporary defect information TDFL# 1 and a pair of corresponding temporary defect management information TDDS# 2 and temporary defect information TDFL# 2 respectively.
Fig. 5 illustrates data are recorded among user data area A and the spare area B according to the embodiment of the invention.Can or bunch be that unit comes deal with data with the sector.The sector is represented can be in the file system of computing machine or the least unit of the data of managing in the application program.Bunch expression can once physically be recorded in the least unit of the data on the dish.Usually, one or more sectors are formed one bunch.
Two types sector is arranged: physical sector and logic sector.Physical sector is that a sectors of data will be recorded the zone on thereon the dish.The address that is used to detect physical sector is known as physical sector number (PSN).Logic sector be with its can be in file system or application program the unit of management data.The address that is used to detect logic sector is known as logic sector number (LSN).As shown in Figure 1 dish recording/reproducing apparatus uses PSN to detect the record position of data, and on data being recorded in dish 100 time, be that unit manages total data in computing machine or application program with LSN, and use LSN detects the position of data.Based on whether coiling 100 initial positions that comprise defective and record data, the relation that changes between LSN and the PSN by the controller 2 of recording/reproducing apparatus.
With reference to figure 5, A represents user data area, and B is illustrated in PSN wherein is assigned to a plurality of sectors (not shown) with ascending order spare area.Usually, each LSN is corresponding at least one PSN.Yet, because LSN is assigned to non-defective sector with ascending order, so even the size of physical sector and logic sector big or small identical, when coiling 100 when having defect area, the correspondence between PSN and the LSN is not held yet.
In the A of data area, section (section) 1001 to 1007 is illustrated in the predetermined unit of the data of wherein carrying out verify-after-write method.Recording unit records the user data in the section 1001, turns back to the initial of section 1001, and checks whether user data is correctly write down or whether defective is present in the section 1001.If detect defective in the part of section 1001, then this part is designated as defective #1.The user data that is recorded among the defective # 1 also is recorded on the part of spare area B.In this, regenerative recording is known as replacement # 1 in the part of the spare area B of the data of defective # 1 therein.
Next, recording unit records the user data in the section 1002, turns back to the initial of section 1002, and checks whether data are correctly write down or whether defective is present in the section 1002.If detect defective in the part of section 1002, then this part is designated as defective #2.In addition, replacing #2 accordingly with defective # 2 is formed among the spare area B.In addition, given defect #3 and replace #3 respectively in the section 1003 of user data area A and spare area B.In section 1004, do not produce defective, and do not have the given defect zone.
After data recording is arrived the data of section 1004 and verification section 1004, promptly, when the user presses the ejector button of recording unit or finish the record of the user data that distributes in recording operation, when recording operation # 0 is expected to finish, recording unit will be recorded in the temporary defect management area territory as temporary defect information TDFL# 0 about defective # 1, the #2 of generation in section 1001 to 1003 and the information of #3.In addition, the defect management information that is used for managing temporary defect information TDFL# 0 is recorded in the temporary defect management area territory as temporary defect management information TDDS# 0.
When recording operation # 1 begins, as explaining that about section 1001 to 1004 data are recorded in the section 1005 to 1007, and defective #4 and #5 and replace #4 and #5 is formed at respectively among the spare area B in user data area A and the temporary defect management area territory.If second recording operation is expected to finish, then as temporary defect information TDFL# 1, and record is included in information among the temporary defect information TDFL# 0 to the recording unit record once more about the information of defective #4 and #5.Thereafter, the defect management information that is used for managing temporary defect information TDFL# 1 is recorded in the temporary defect management area territory.
Fig. 6 A and 6B illustrate according to the temporary defect information TDFL# 0 of the embodiment of the invention and the data structure of TDFL#1.Fig. 7 illustrates the data structure about the information of defective #i.
With reference to figure 6A and 6B, temporary defect information TDFL# 0 comprises the information to #3 about defective #1.At length say, indicate the position in the zone of the position in the zone that has defective # 1 therein and the #1 of record replacement therein about the information of defective #1.Indicate the position in the zone of the position in the zone that has defective # 2 therein and the #2 of record replacement therein about the information of defective #2.Indicate the position in the zone of the position in the zone that has defective #3 therein and the #3 of record replacement therein about the information of defective #3.
Except the information that is included in temporary defect information TDFL# 0, temporary defect information TDFL# 1 also comprises the information about defective #4 and #5.That is, temporary defect information TDFL# 1 comprises: about the information of defective # 1, about the information of defective # 2, about the information of defective #3, about the information of defective #4 with about the information of defective #5.
With reference to figure 7, point to the pointer and the pointer that points to replacement #i of defective #i about the information description of defective #i.At length say, be used for the starting and ending point of the pointer given defect #i of defective #i, and the pointer that is used to replace #i is specified the starting and ending point of replacing #i.
Below, with the defect management method that is described with reference to Figure 8 according to the embodiment of the invention.With reference to figure 8, in operation 801, recording unit will be recorded in the temporary defect management area territory of dish as the first temporary defect information about the defect information according to the data of first recording operation record.This process is used for managing disc defect.In operation 802, will be used for managing the first temporary defect management of information information and be recorded in the temporary defect management area territory as the first temporary defect management information.
In operation 803, whether the inspection dish needs is finished at last.In operation 804, if determine that in operation 803 dish does not need to be finished at last, then to operate 801 and 802 and be repeated, the index that will give recording operation, temporary defect information and temporary defect management information simultaneously increases by 1.Yet, should be appreciated that other numeral can be used for the index of scope that this numeral is used to distinguish the data set of record.
In operation 805, if determine that in operation 803 dish need be finished at last, then the temporary defect information of the temporary defect management information of final entry and final entry is recorded in the defect management.That is, the temporary defect information of the temporary defect management information of final entry and final entry is recorded in the defect management (DMA) as final temporary defect management information and temporary defect information.According to an aspect of the present invention, final temporary defect management information and temporary defect information can be repeated record, thereby improve the reliability of Data Detection.
According to an aspect of the present invention, can be to final temporary defect management information and final temporary defect information and executing verify-after-write method.If detect defective from final temporary defect management information and final temporary defect information, then produce therein defective dish the zone and be recorded in data after this zone with defective can be considered to disabled (promptly, the zone of final temporary defect management information and final temporary defect information is designated as defect area), and final temporary defect management information can be recorded in after this defect area once more with final temporary defect information.
Fig. 9 illustrates the process flow diagram of disc defect management method in accordance with another embodiment of the present invention.With reference to figure 9, recording unit records the user data in the data area so that verify-after-write method (operation 901) with the unit of data.In operation 902, in operation 901 user data of record by verification to detect existing of defective in any zone of dish 100.In operation 903, it is defect area that the controller of Fig. 12 is specified the zone with defective, is overwritten in the spare area and replaces the zone to create being recorded in user data in the defect area, and create the pointer information that points to defect area respectively and replace the zone.In operation 904, pointer information is stored in the storer 3 of Fig. 1 as the first temporary defect information.In operation 905, whether the inspection record operation is finished by expectation.Do not expect to finish if in operation 905, determine recording operation, then operate 901 and be repeated to 904.
Yet, in operation 906, if determining the recording operation expectation in operation 905 finishes (promptly, when finishing the record of user data) by user's input or according to recording operation, then controller 2 reads temporary defect information # 0 from storer 3, and temporary defect information # 0 is recorded in the temporary defect management area territory as temporary defect information TDFL#0.In operation 907, the management information that is used for managing temporary defect information TDFL# 0 is recorded in the temporary defect management area territory as temporary defect management information TDDS# 0.
In operation 908, whether inspection dish 100 needs to be finished at last.If determine that in operation 908 dish 100 does not need to be finished at last, then operating 901 to 907 index that are repeated will to give simultaneously recording operation, temporary defect information and temporary defect management information increases by 1.Yet, should be appreciated that other numeral can be used for the index of scope that this numeral is used to distinguish the data set of record.
In operation 910, if determining in operation 908 needs finishing at last of dish 100, then the temporary defect management information TDDS#i of the temporary defect information TDFL#i of final entry and final entry is recorded in the defect management (DMA) as defect information DFL and defect management information DDS.According to an aspect of the present invention, defect information DFL and defect management information DDS can be repeated to write down several times to improve the reliability of Data Detection.
In addition, according to an aspect of the present invention, can carry out verify-after-write method to defect information DFL and defect management information DDS.If detect defective from these DFL and DDS, then have defective and be recorded in the zone of data after the zone with defective can be considered to unavailable (promptly, the zone that comprises DFL and DDS is designated as defect area), and defect management information and defect information can be recorded in after the defect area once more.
Above-mentioned defect management method may be implemented as can be by the computer program of computer run.Those skilled in the art can easily release code and the code segment of forming computer program.Program is stored in the computer-readable medium.When reading by computing machine, carry out according to defect management method of the present invention by computing machine with working procedure.In this, computer-readable medium can be magnetic recording media, optical recording media, carrier media firmware or other recordable media.
Although be not essential in all respects, should be appreciated that controller 2 can be to use on computer-readable medium calculation of coding machine program to realize the computing machine of this method.Computing machine may be implemented as the chip with firmware, perhaps can be general or specific purposes able to programme to carry out the universal or special computing machine of this method.
In addition, should be appreciated that in order to realize the recording capacity of tens gigabytes, record and/or reproduction units 1 can comprise the low wavelength, high numerical aperture type units that is used in the data of record tens gigabytes on the dish 100.The example of these unit includes, but are not limited to: those use the optical wavelength of 405nm and have the unit of 0.85 numerical aperture, those and the unit of the unit of Blu-ray disc compatibility and/or those and advanced CD (AOD) compatibility.
Utilizability on the industry
As mentioned above, the invention provides the defect management that may be used on coiling.According to an aspect of the present invention, the temporary defect information area is present in to be introduced the zone and/or draws in the zone, thus record defect information cumulatively.In addition, during the finishing at last of dish, only the temporary defect information of final entry is read from the temporary defect management area territory, and is recorded in the defect management, thereby realizes effective use of defect management.Therefore, may when being recorded in data on the Write-once disc, carry out defect management, not interrupt carrying out backup operation thereby can more stably have.
Although describe, should be appreciated that this method also can be used for rewritable medium or when medium has write-once and rewritable part according to Write-once disc.
Although illustrated and described some embodiments of the present invention, those skilled in the art should understand that without departing from the principles and spirit of the present invention can make change in an embodiment, scope of the present invention is limited by claim and equivalent thereof.
Claims (4)
1. the method for the data in the accesses disk, this dish comprises the data area, introduces the zone and draws the zone, and this method comprises:
Read temporary defect information and temporary defect management information from the temporary defect management area territory of dish, wherein, temporary defect information comprises the defect information of dish, and the temporary defect management area territory is arranged on and draws the zone and/or introduce in the zone;
Based on the data of temporary defect information and temporary defect management information Visitor Logs,
Wherein, temporary defect information comprises that temporary defect management information comprises the positional information about temporary defect information about the positional information of defective data and about the positional information of the replacement data that is used to replace defective data.
2. the method for claim 1, wherein:
This dish also comprises being arranged on draws the zone and/or introduces defect management in the zone;
This reads and comprises temporary defect information and the temporary defect management information that reads in defect management and/or the temporary defect management area territory; And
This visit comprises the data based on temporary defect information that reads and temporary defect management information Visitor Logs.
3. one kind with comprising the data area, introduce the zone and drawing the reproducer that the dish in zone uses, and this equipment comprises:
Read the unit, from the dish reading of data;
Controller, control is read the unit and is read temporary defect information and temporary defect management information from the temporary defect management area territory of dish, wherein, temporary defect information comprises the defect information of dish, the temporary defect management area territory is arranged on draws in zone and/or the introducing zone, and the data of unit based on temporary defect information and temporary defect management information Visitor Logs are read in described controller control
Wherein, temporary defect information comprises that temporary defect management information comprises the positional information about temporary defect information about the positional information of defective data and about the positional information of the replacement data that is used to replace defective data.
4. equipment as claimed in claim 3, wherein,
This dish also comprises being arranged on draws the zone and/or introduces defect management in the zone;
This reads and comprises temporary defect information and the temporary defect management information that reads in defect management and/or the temporary defect management area territory; And
This visit comprises the data based on temporary defect information that reads and temporary defect management information Visitor Logs.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020020061897A KR100739673B1 (en) | 2002-10-10 | 2002-10-10 | Method for managing defect using temporary DFL and temporary DDS |
| KR10-2002-0061897 | 2002-10-10 | ||
| KR1020020061897 | 2002-10-10 |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB038240661A Division CN100495563C (en) | 2002-10-10 | 2003-09-23 | Recording and/or reproducing apparatus |
Publications (2)
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| CN101083123A CN101083123A (en) | 2007-12-05 |
| CN101083123B true CN101083123B (en) | 2011-07-27 |
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| CN200710126966XA Expired - Lifetime CN101083123B (en) | 2002-10-10 | 2003-09-23 | Method for accessing data in disk and reproducer |
| CN2007101269674A Expired - Lifetime CN101083112B (en) | 2002-10-10 | 2003-09-23 | Method of managing disc defects in disc, and method for transferring data |
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| CNB038240661A Expired - Lifetime CN100495563C (en) | 2002-10-10 | 2003-09-23 | Recording and/or reproducing apparatus |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2007101269674A Expired - Lifetime CN101083112B (en) | 2002-10-10 | 2003-09-23 | Method of managing disc defects in disc, and method for transferring data |
Country Status (16)
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| EP (2) | EP2328152A3 (en) |
| JP (2) | JP5025087B2 (en) |
| KR (1) | KR100739673B1 (en) |
| CN (3) | CN100495563C (en) |
| AU (1) | AU2003264963A1 (en) |
| BR (1) | BRPI0314659B1 (en) |
| CA (1) | CA2499029C (en) |
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| SG (1) | SG152921A1 (en) |
| TW (1) | TWI238387B (en) |
| WO (1) | WO2004034396A1 (en) |
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2002
- 2002-10-10 KR KR1020020061897A patent/KR100739673B1/en active IP Right Grant
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- 2003-09-23 EP EP03807997A patent/EP1550125A4/en not_active Ceased
- 2003-09-23 AU AU2003264963A patent/AU2003264963A1/en not_active Abandoned
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0350920A2 (en) * | 1988-07-13 | 1990-01-17 | Matsushita Electric Industrial Co., Ltd. | A method of managing defective sectors in a disk-shaped information recording medium and an apparatus for performing the same |
| US6367038B1 (en) * | 1998-11-10 | 2002-04-02 | Samsung Electronics Co., Ltd. | Recording medium having spare area for defect management and information on defect management, and method of allocating spare area and method of managing defects |
| CN1338103A (en) * | 1999-03-08 | 2002-02-27 | 松下电器产业株式会社 | Information recording medium, information recording method, information recording device and information reproducing device |
| CN1323032A (en) * | 2000-04-08 | 2001-11-21 | 三星电子株式会社 | Method for testing optical disk imperfect management area information |
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